JP2017119399A5 - - Google Patents

Description

The composite sheet according to the invention disclosed in Patent Document 1, the machine direction odor Te, and large portions of the extension contraction force, it is difficult to produce a composite sheet having a small portion of the stretching force.

A disposable diaper 10 using this composite sheet 106 is shown in FIGS. The diaper 10 has a longitudinal direction Y and a transverse direction X intersecting (orthogonal) with it, a skin facing surface and a non-skin facing surface facing it, an annular elastic waist panel 11 extending in the direction of the waist, and an elastic waist panel 11 includes an absorption chassis (liquid absorbing structure) 12 attached to the skin facing surface side, a front waist region 13, a rear waist region 14, and a crotch region 15 located between the front and rear waist regions 13,14.

The liquid absorbent core 43 is a mixture of a required amount of superabsorbent polymer particles and fluff pulp, and has a semi-rigidity that is higher in rigidity than the sheet member constituting the diaper 10. Further, the liquid absorbent core 43 has a panel shape in which the central portion in the longitudinal direction Y has a narrow shape, and the whole is covered with a liquid diffusive sheet 47 such as a tissue. The top sheet 44 and the back sheet 45 extend outward from the peripheral edge portion of the liquid-absorbent core 43, and the extended portions are overlapped with each other and joined via a hot melt adhesive (not shown). Thus, a side flap 48 extending outward in the lateral direction X from both side edges 43C of the liquid absorbent core 43 and an end flap 49 extending outward in the vertical direction Y from both end edges of the liquid absorbent core are formed. Is done.

Claims (8)

(A) fixing a continuous elastic body extending in the machine direction to the first sheet conveyed in the machine direction;
(B) cutting a part of the one continuous elastic body fixed to the first sheet at an interval in the machine direction;
(C) the method for producing a composite sheet comprising a step of joining together said first sheet and said second sheet of continuous elastic members in a state of being interposed between the first sheet and the second sheet.   The said b process WHEREIN: The dimension of the cross direction which cross | intersects the said machine direction of the remaining part of the said continuous elastic body in a cutting part is made smaller than the dimension in the said crossing direction of the said continuous elastic body which does not have a cutting part. A method for producing the composite sheet according to 1. In the step b, a part of the continuous elastic body overlaps with the continuous elastic body in the thickness direction with a cutting tool having a length dimension in the cross direction smaller than a dimension in the cross direction of the continuous elastic body. The method for producing a composite sheet according to claim 1 or 2, wherein at least one of the first and second sheets is cut. In the step b, a part of the continuous elastic body overlaps with the continuous elastic body in the thickness direction with a cutting tool having a length dimension in the cross direction larger than a dimension in the cross direction of the continuous elastic body. The method for producing a composite sheet according to claim 1 or 2, wherein at least one of the first and second sheets and at least one of the first and second sheets that do not overlap the continuous elastic body in the thickness direction are cut. . After applying an adhesive to the peripheral surface of the continuous elastic body, in the step c, the continuous elastic body is fixed to the first and second sheets by the adhesive, respectively.
The manufacturing method of the composite sheet of Claim 3 or 4 which cut | disconnects a part of said continuous elastic body with the said cutting tool in the said b process after the said c process.   The said b process WHEREIN: The manufacturing method of the composite sheet of Claim 3 which cut | disconnects a part of said continuous elastic body with the said cutting tool inside the both-sides edge in the said crossing direction of the said continuous elastic body.   The said cutting tool is a manufacturing method of the composite sheet in any one of Claims 3-6 currently fixed to the base part so that it may incline with respect to the said machine direction. In the step b after the step a and the step c, the cut portion is formed in the first and second sheets,
(D) The manufacturing method of the composite sheet of Claim 5 which has the process of fixing and laminating a waterproof 3rd sheet | seat on at least one of the said 1st and 2nd sheet | seat after the said b process.